<template>
  <div class="login-container">
    <div class="left">
      <div class="title-box">
        <img src="@/assets/img/login_icon.png" alt="" />
        <span class="title">黑马面面</span>
        <span class="line"></span>
        <span class="sub-title">用户登录</span>
      </div>
      <!--
        model：模型值，它里面的属性值要跟后台一致，因为要提交给后台
        rules：校验规则
        ref：将来获取表单实例
       -->
      <el-form
        :model="ruleForm"
        :rules="rules"
        ref="ruleForm"
        class="login-form"
      >
        <!-- prop要跟model中的属性和rules中的属性，保持一致 -->
        <el-form-item prop="phone">
          <el-input
            prefix-icon="el-icon-user"
            placeholder="请输入手机号"
            v-model="ruleForm.phone"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            prefix-icon="el-icon-lock"
            placeholder="请输入密码"
            v-model="ruleForm.password"
            show-password
          ></el-input>
        </el-form-item>
        <el-row>
          <el-col :span="16">
            <el-form-item prop="code">
              <el-input
                prefix-icon="el-icon-key"
                placeholder="请输入验证码"
                v-model="ruleForm.code"
              ></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="7">
            <img
              style="width:100%;height:40px;margin-left:10px;"
              :src="loginCaptchaUrl"
              alt=""
              @click="changeLoginCaptchaUrl"
            />
          </el-col>
        </el-row>
        <el-form-item prop="checked">
          <el-checkbox v-model="ruleForm.checked"></el-checkbox
          >&nbsp;我已阅读并同意<el-link
            type="primary"
            target="__blank"
            href="https://in.m.jd.com/help/app/register_info.html"
            >用户协议</el-link
          >和<el-link type="primary">隐私条款</el-link>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" style="width:100%;" @click="login"
            >登录</el-button
          >
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="register" style="width:100%;"
            >注册</el-button
          >
        </el-form-item>
        <!-- <el-form-item>
          <el-button type="primary" @click="getCode" style="width:100%;">{{
            tipName
          }}</el-button>
        </el-form-item> -->
      </el-form>
    </div>
    <div class="right">
      <img src="@/assets/img/login_bg.png" alt="" />
    </div>
    <!-- 注册子组件 -->
    <register ref="registerRef" />
  </div>
</template>

<script>
// 默认导入名字可以随意取
// import obj from '@/utils/token'

// 按需导入中{}的名字，必须和导出时候一致
// 按需导入语法 {} 是语法的组成部分，并且
import { saveToken } from '@/utils/token'
import register from './register'
export default {
  components: {
    register
  },
  data () {
    return {
      total: 120,
      tipName: '获取验证码',
      timer: null,
      // 登录验证码的url
      loginCaptchaUrl: process.env.VUE_APP_BASEURL + '/captcha?type=login',
      ruleForm: {
        phone: '18511111111', // 手机号
        password: '12345678', // 密码
        code: '', // 验证码
        checked: true // 是否同意用户协议
      },
      rules: {
        phone: [
          {
            validator: (rule, value, callback) => {
              // rule 规则，没什么价值
              // value 就是输入或是选择的值
              // callback 决定校验是成功还是失败，如果失败了 callback(new Error('提示信息'))，如果成功了则直接调用callback
              // 注意：无论成功与否，都要调用callback，否则下一个异步操作无法执行
              if (!value) {
                // 这个return 就是阻断代码执行
                return callback(new Error('手机号不能为空'))
              }

              const reg = /^1[3456789][0-9]{9}$/
              if (!reg.test(value)) {
                return callback(new Error('手机号不合法'))
              }

              // 可定校验通过的
              callback()
            },
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { min: 6, max: 16, message: '密码必须在6-16位之间', trigger: 'blur' }
        ],
        code: [{ required: true, message: '验证码不能为空', trigger: 'blur' }],
        checked: [
          {
            validator: (rule, value, callback) => {
              value ? callback() : callback(new Error('必须勾选用户协议'))
            },
            trigger: 'change'
          }
        ]
      }
    }
  },
  methods: {
    changeLoginCaptchaUrl () {
      this.loginCaptchaUrl =
        process.env.VUE_APP_BASEURL + `/captcha?type=login&t=${new Date() - 0}`
    },
    // 登录
    login () {
      // 全部校验
      this.$refs.ruleForm.validate(async valid => {
        // 如果校验不通过，阻止代码继续往下执行
        if (!valid) return

        const res = await this.$axios.post('/login', this.ruleForm)

        if (res.code === 200) {
          // 提示
          this.$message.success('登录成功~')

          // 保存
          // localStorage.setItem('heimamm63_token', res.data.token)
          // obj.saveToken(res.data.token)
          saveToken(res.data.token)

          // 跳转
          this.$router.push('/layout')
        } else {
          // this.$message.error(res.message)
          this.$message({
            message: res.message,
            type: 'error',
            duration: 1000
          })

          // 刷新验证码
          this.changeLoginCaptchaUrl()
        }
      })
    },
    // 弹出注册子组件
    register () {
      this.$refs.registerRef.dialogVisible = true
    },
    getCode () {
      this.timer = setInterval(() => {
        console.log('---倒计时进行中...---')
        this.total--
        this.tipName = `${this.total} 秒之后重试`
      }, 1000)
    }
  },
  beforeDestroy () {
    clearInterval(this.timer)
  }
}
</script>

<style lang="less">
.login-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: linear-gradient(225deg, #1493fa, #01c6fa);
  .left {
    width: 478px;
    height: 550px;
    background: #f5f5f5;
    padding: 48px;
    .title-box {
      display: flex;
      align-items: center;
      img {
        width: 22px;
        height: 17px;
        margin-right: 16px;
      }
      .title {
        font-size: 24px;
        margin-right: 14px;
      }
      .line {
        width: 1px;
        background-color: #c7c7c7;
        height: 27px;
        margin-right: 12px;
      }
      .sub-title {
        font-size: 22px;
      }
    }
    .login-form {
      margin-top: 29px;
    }
  }
}
</style>
